Solving other problems26810. Troubleshooting20Copying problemsAn unknownimagerepetitivelyappears on afew sheets orloose toner,light print, orcontaminationoccurs.Your machine is probably being used at an altitude of 1,000 m(3,281 ft) or above.The high altitude may affect the print quality, such as loosetoner or light imaging. Change the correct altitude setting toyour machine.Condition Suggested solutionCopies are toolight or too darkTap Copy from the home screen or Apps. You can adjust thedarkness level of a copy if needed for easier reading if theoriginal contains faint markings or dark images (see"Changing Darkness" on page 108).Smears, lines,marks, or spotsappear on copies.• If the defects are on the original, tap Copy from the homescreen or Apps (see "Changing Darkness" on page 108).• If there are no defects on the original, clean the scan unit.Cleaning the scan unit or contact a servicerepresentative.Condition Suggested SolutionsCopy image isskewed.• Ensure that the original is face down on the scanner glassor face up in the DSDF.• Check that the copy paper is loaded correctly.• If the problem persists, the machine may require repair.Contact a service representative.Blank copiesprint out.Ensure that the original is face down on the scanner glass orface up in the DSDF.Image rubs offthe copy easily.• Replace the paper in the tray with paper from a newpackage.• In high humidity areas, do not leave paper in the machinefor extended periods of time.Frequent copypaper jams occur.• Fan the paper, then turn it over end for end and place itback in the tray. Replace the paper in the tray with a freshsupply. Check/adjust the paper guides, if necessary.• Ensure that the paper is the proper paper weight.• Check for copy paper or pieces of copy paper remainingin the machine after a paper jam has been cleared.Toner cartridgeproduces fewercopies thanexpected beforerunning out oftoner.• Your originals may contain pictures, solids, or heavy lines.For example, your originals may be forms, newsletters,books, or other documents that use more toner.• The DSDF may be left open while copies are being made.• The machine may be turned on and off frequently.Condition Suggested solution
